/*
Copyright 2022.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package controllers

import (
	"context"
	"path/filepath"
	"testing"

	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"

	"k8s.io/client-go/kubernetes/scheme"
	"k8s.io/client-go/rest"
	ctrl "sigs.k8s.io/controller-runtime"
	"sigs.k8s.io/controller-runtime/pkg/client"
	"sigs.k8s.io/controller-runtime/pkg/envtest"
	logf "sigs.k8s.io/controller-runtime/pkg/log"
	"sigs.k8s.io/controller-runtime/pkg/log/zap"

	gitopsv1alpha1 "github.com/kptdev/kpt/rollouts/api/v1alpha1"
	//+kubebuilder:scaffold:imports
)

// These tests use Ginkgo (BDD-style Go testing framework). Refer to
// http://onsi.github.io/ginkgo/ to learn more about Ginkgo.

var cfg *rest.Config
var k8sClient client.Client
var testEnv *envtest.Environment
var tt *testing.T

func TestAPIs(t *testing.T) {
	RegisterFailHandler(Fail)
	tt = t
	RunSpecs(t, "Controller Suite")
}

var _ = BeforeSuite(func() {
	logf.SetLogger(zap.New(zap.WriteTo(GinkgoWriter), zap.UseDevMode(true)))

	By("bootstrapping test environment")
	testEnv = &envtest.Environment{
		CRDDirectoryPaths: []string{
			filepath.Join("..", "config", "crd", "bases"),
			// use the container cluster yaml from the manifests
			filepath.Join("..", "manifests", "crds", "containercluster.yaml"),
		},
		ErrorIfCRDPathMissing: true,
	}

	var err error
	// cfg is defined in this file globally.
	cfg, err = testEnv.Start()
	Expect(err).NotTo(HaveOccurred())
	Expect(cfg).NotTo(BeNil())

	Expect(gitopsv1alpha1.AddToScheme(scheme.Scheme)).To(Succeed())

	//+kubebuilder:scaffold:scheme

	k8sClient, err = client.New(cfg, client.Options{Scheme: scheme.Scheme})
	Expect(err).NotTo(HaveOccurred())
	Expect(k8sClient).NotTo(BeNil())

	k8sManager, err := ctrl.NewManager(cfg, ctrl.Options{
		Scheme: scheme.Scheme,
	})
	Expect(err).ToNot(HaveOccurred())

	Expect((&RolloutReconciler{
		Client: k8sManager.GetClient(),
		Scheme: k8sManager.GetScheme(),
	}).SetupWithManager(k8sManager)).To(Succeed())

	Expect((&RemoteSyncReconciler{
		Client: k8sManager.GetClient(),
		Scheme: k8sManager.GetScheme(),
	}).SetupWithManager(k8sManager)).To(Succeed())

	Expect((&ProgressiveRolloutStrategyReconciler{
		Client: k8sManager.GetClient(),
		Scheme: k8sManager.GetScheme(),
	}).SetupWithManager(k8sManager)).To(Succeed())

	ctx := context.Background()
	go func() {
		defer GinkgoRecover()
		Expect(k8sManager.Start(ctx)).To(Succeed())
	}()
})

var _ = AfterSuite(func() {
	By("tearing down the test environment")
	_ = testEnv.Stop()
	// TODO(droot): teardown of the testenv seems to always fail
	// so assert succeeding here results reports the overall test failure.
	// In my experience, teardown seems to shutdown the apiserver and etcd
	// and doesn't cause any repeat runs of e2e test, so removing this
	// assertions for now.
	// Expect(err).NotTo(HaveOccurred())
})
